Apparatus for winding armatures for dynamos and motors.



P. N. PIKE. APPARATUS FOR WINDING ARMATURES FOR DYNAMOS AND MOTORS.

APPLICATION FILED MAY 18, 1809.

Patented Dec. 24, 1912.

4 SHEETS-SHEET 1.

#1, W A tty F. N. PIKE. APPARATUS FOR WINDING ARMATURES FOR DYNAMOS ANDMOTORS.

APPLICATION FILED MAY 18, 1909. 1,048,205, Patented Dec. 24, 1912.

4 SHEETS-SHEET 2,

A ttest Inventor,- W Wi Atty F. N. PIKE. APPARATUS FOR WINDING ARMATURESFOR DYNAMOS AND MOTORS.

APPLICATION FILED MAYIB, 1909.

{348,205. Patented Dec.24,1912.

4 SHEETS-$11331 3.

v 5 WW inivnvgl by Atty F. N. PIKE. APPARATUS FOR WINDING ARMATURES FORDYNAMOS AND MOTORS. APPLICATION FILED MAY 18, 1900.

1,048,205. Patented Dec. 24, 1912.

4 SHEETSSHEET 4.

a h l w ll,

Invent r: by

A tty FREDERICK N.

PIKE, OF NEW YORK, N. Y., ASSIGNOB 0F ONE-THIRD TO 3.12. DICKERSON, OFSTOVALL, NORTH CAROLINA.

APPARATUS FOR WINDING KBMATURES FOB DYNAMOS AND MOTORS;

To all whom it may concern.

Be it known that I, FREDERICK N. PIKE, a citizen of the United States,residing at New York, in the county and State of New York, have inventednew and useful Improvements in Apparatus for Winding Armatures forDynamos and Motors, of which the following is a specification.

This invention relates to new and useful improvementsin an apparatus forwinding armatures for dynamos and motors.

It relates especially to a machine for winding armature's having slottedcores, into which slots the enerating wire is expected to be wound. 1rmatures of this class are mounted upon a spindle or shaft andconseuently it is impossible to wind a coil t rough one slot and thenthrough the slot directly op osite on account of the interference of tiearmature shaft, conse uentl it is customary to wind the wire t roug oneslot and then through the slot next to the one opposite the slot throughwhichthe wire first passes. The ordinary method of Winding sucharmatures is by hand, mounting the spindle between lathe centers andturning t conditions of winding require.

In my invention I arrange an apparatus in which the spindle rests infixed centers and is capable of automatic rotation in such centers,Whereas the wire which passes through a winding flier is rotated in thesame plane following a circular course. This Winder is so directlyconnected with the spindle adjusting mechanism that, after the wire hasbeen la1d in a groove, the spindle is automatically shifted the ropernumber of degrees of rotation to suit the armature. In the apparatusshown the rotation is one-sixteenth of a circle. In.this way when thewire is laid in the second part of its revolution, it reaches a slot notdirectly op osite the first slot, but adjacent thereto.

& invention will be readily understood from the accompanying drawings,in which- Figure 1 represents a vertical elevation, Fig. 2 a plan view,Fi 3 is a cross section on the line w -w 0 Fig. 1. Fig. 4a cross sectionon the line y-y Fig. 1. Fig. 5 a view of a modification showing themachine driven by a pulley instead 0 by hand and the spool of wirecarried on the outside Specification of Letters Patent.

Application filed May 18, 1809. Serial No. 496,788.

e spindle in the centers, as the' Patented Dec. 24,1912.

of the bearing. Fig. 6 is an enlarged detail view, showing the mountingof one of the levers included in the apparatus.

In.said drawings, the armature core 1 is shown as mounted on a verticalshaft 2 whose upper portion is engaged by a clamp bearing 4, the lowerend of the shaft being removably seated in a socket member 5, providedwith a center 6, from which member the shaft, and with it the armaturecore, may be withdrawn. when said clamp is opened.

Below the core there is afiixed to shaft 2, by means of a chuck 8, adisk or plate 7 formed with a series of guide slots 10 that correspondin number and position to the core slots 9. To oscillate said plate and,also, the shaft and core there is provided a mechanism which preferablycomprises a pawl 11, and a swinging arm 12 for actuating' the same. Thepawl 11 is slidably en- 'gaged in a suitable support 17, that serves toguide it during its endwise movements, and is forced into lockingposition in slots 10 by a spring 18, here shown as coiled around the uper portion of a pin 16 hereinafter describe one end of this spring beinpositively connected to the adjacent end 0% the pawl so as to exert itstension thereagainst. The aforesaid support is carried by a member 70which is loosely attached to shaft 2. The lateral movements of the awlrequisite to produce the oscillation o the core are effected, in theresent instance, by a pin 16 secured to mom er 70 and projecting aboveand below the same, said in carrying at its lower end a roller 15 whichis alternately engaged by a pair of spaced lugs 14 provided upon atransverse plate 13 affixed to the adjacent end of arm 12. ,Said armitself is mounted upon a ivot 19 and is connected at its other end withthe lower end of a vertical arm 20 that is pivoted at 21 to a standard71 mounted upon the base of ,the apparatus. The upper end of arm 20 isprovided with spaced jaws 22 which straddle a cam, 23 secured to thehorizontal winding shaft 24 that is journaled in said standard. Thisshaft carries the winding flier 25 and may, if desired, be formed wit abore 26, (see Fig. 53. The spool 28 from which the wire 27 is rawn, maybe mounted either upon a bracket secured to the driv ing pulley 55carried by shaft 24, or upon proper time by said shaft between thestandard and the armature core, a suitable tension device 30 beingemployed in the latter construction which is illustrated in Figs. 1 and2, wherein two such s ools are shown. The arm or arms of the flier areprovided with the terminal eye or eyes 29, and the flier itself may beso adjusted as to move the wire in'a circular path large enough to passoutside of the core.

The above-described arrangement is such, therefore, as to roduce ato-and-fro swinging movement of arm 12, during rotation of shaft 24,through the intermediary of parts 23, 22, and 20, and the connection ofthe lastnamed part with said arms, the movement of the latter effecting,in turn, an oscillation of plate 7, core 1 and shaft 2 by means of 13and its lugs 14, pin 16 and pawl 11.

In order to provide for'the requisite number of turns of wire being laidin each pair of core slots, there is employed a toothed wheel 32 that isengaged by a pawl 31 whose operative stroke may be adjusted to feed saidwheel two, three, four or any other desired number of teeth within thelimitations of the wheel. This wheel has operatively associated with ita mechanism, hereinafter described, which serves to automatically rotatethe core one step after one pair of slots have been filled, so as tobring the next pair of slots into the circular path of the flier. Asshown in Fig. 3, pawl 31 is mounted upon an arm, or snnilar member, 7 2that is pivoted at 35 to a fixed bracket 73, said member 72 beingprovided with a projection 36 that is alternately engaged by the twoshoulders formed on an angle piece 33 adjustably mounted on arm 12. Byadjusting the position of this angle piece on said arm, the extent ofthe swinging movement of the pawl, and, hence, of the rotary or feedmovement of the toothed wheel, can be regulated at will. To precluderetrograde movement of the wheel, a suitable pawl 37 is provided. Meansare also made use of to denote the completion of a revolution of saidwheel, or, in other words, the exact moment when the requisite number ofturns of wire have been laid in each pair of core slots, an audiblesignal being preferably utilized, which is here shown as consisting of abell or. gong 57 adapted to be struck at the a hammer 58; this hammermay be pivoted to the toothed wheel or mounted in any other desiredmanner, and its free end 59 is designed for engagement by a suitableoperating member, in the present instance, the awl 31.

From the oregoing, it will be apparent, therefore, that during theswinging movement of the main operating arm 12, the toothed wheel willbe fed step by step the required number of teeth, while the armaturecore will be simultaneously oscillated,

plate thus allowing the wire to enter its predetermined slot withoutcrossing the center of the armature shaft. Owing, however, to the lostmotion occasioned by t 1e play of pin 16 between the lugs 14 on plate13, the rotation of the core does not take place during the period inwhich the Wire is being laid in a slot, but while the flier is travelingfrom its position in laying the wire in one slot to its position inlaying the wire in the next slot.

If desired, the apparatus can be made to operate simply with themechanism heretofore described, the rotation or feeding of the armaturecore being effected manually after the completion of each revolution ofthe toothed wheel. The automatiCally-operated feed mechanism abovereferred to is, however, preferably employed, and in that instance thesignal device may be omitted as being unnecessary. The mechanism justmentioned includes as its main operating member a feeding rod 39 whichis loosely pivoted at its rear end, as indicated by the numeral 41, toan arm 38 projecting laterally from arm 12 and rigidly connectedthereto. Rod 39 is supported centrally by a fulcrum 40 in which it isarranged for both longitudinal and rocking movement, its pivotalconnection with arm 38 being of such a character as to permit the lattermovement, which movement is effected by the passage of a beveled lug 43on the under face of wheel 32 over the corresponding beveled or bentportion 42 on said rod directly adjacent pivot 41.

At its forward end, rod 39 is provided with a shoulder piece 49 having acamsurfaced upper end 50 which is designed for cooperation with theadjacent portion 48 of a lever 45, as hereinafter described, said leverbeing pivoted to a suitable support 44 carried by plate 13, and beingnormally forced away from the armature core by the action of a spring47. The opposite portion of said lever from the portion indicated by thenumeral 48 is formed with a terminal hook 46 that is adapted to engagethe lower end of a depending pin 51 carried by a small angle lever 52pivoted at 75 adjacent its apex to an extension 76 of a second lever 74which is operated by lever 52 and, in the construction illustrated, isloosely pivoted on the up er end of pin 16 carried by said member %0,although it may be pivoted in any other desired manner to that member,as will be ifmderstood. The long arm of lever 52 is ree. movement only,is directly connected at one end to a depending pin 78 secured to pawl11 intermediatethe ends of the latter and its operative coaction withlever 52 is due to the shape of the head or apex of the latter lever,said head being provided with two spaced projections 77 which extendLever 74 which has a slight rocking flows: When the rear end of rod 39is depressed by the passage of the member 48 across the member 42, thefront end of said rod will of course, be raised. This movement talresplaceat the same time that arm 12 swings away from rod 39 into itsdotted line position shown in Fig. 3, and that said rod moves forward.As the rod end'rises, its shoulder 50 is brou ht into position to engagethe part 48 of ever 45, against which shoulder said part is held by theaction of spring 47 during the succeeding rearward movement of the rodand the swingin movement of arm 12 toward said rod. henarm 12 again swins awa from the rod and the latter moves orwar the hook 46 .on lever 45will engage pin 51 carried by lever 52, and will initially rock thatlever slightl upon its pivot 75 until one of its projec ions 77 en ageslever 74. The continued movement 0% arm 12 and rod 39 in the directionspecified will then cause the pressure exerted by lever 45 on lever 52to'be transmitted throu h the latter to the extension end 76 o lever 74,(since lever 52 is mounted on that end of lever 74 and is then pressedagainst the same), with the result that lever 74 is rocked in acounterclockwise direction upon its pivot 16 and thus withdraws pawl 11from its slot in plate 7, said pawl being then moved toward and slightlybeyond the next slot in said plate. As member 43 disengages member 42,the front end of rod 39 will drop, thereby disengaging shoulder 50 fromthe .part 48 of lever 45, whereupon that lever will assume its normalposition under the influence of spring 47, and when said rod again movesrearwardly and arm 12 swings toward it, pawl 11 will be forced into thenew slot, on reaching the same, and the oscillation of the core will becontinued as before.

It will be seen, therefore, that the feeding pawl 11 has two distinctmovements, namely, a lateral oscillatory movement which is effected bythe coaction of pin 16 with the lugs 14 on late 13, and an endwise orforward an backward movement which is produced by the actuation of lever74 and the pressure of spring 18.

There is finally provided a loop-forming device which is operative atthe completion of each revolution of the toothed wheel 32, that acts asthe counter for the turns of wire. This device may advantageouslycomprise a suitably bent hook member 53 which is secured to the frontend of the feeding rod 39, and is, therefore, moved forward and backwardwith said rod and rises and falls with the rod end. Consequently, a loopwill be drawn or formed in the wire at each operation of the hook, asshown in Fig. 4, which loop is adapted to be attached to the commutatorin the usual manner.

The operation of the entire apparatus is believed to be apparent fromthe f-foregoing, and, hence, to require no further explanation. It is tobe understood, however, that no limitations to the exact constructionand arrangement of parts shown and 'described are contemplated, otherthan those which are imposed by the appended claims. What I desire toclaim as my invention and secure by Letters Patent, is:--

1. In an automatic winding mechanism, the combination ofanarmaturesupport; and feed mechanism for intermittently rotating saidsupport com rising a rockin arm, a pawl operated t ereby when sai arm isrocked, a pivotally-mounted arm actuated by said pawl, and a feedingpawl operated by said pivotally-mounted arm..

2..In a windin apparatus, the combination of a shaft a apted to supportthe. core of an armature; a guide secured to said shaft and providedwith a series of peripheral slots corresponding in position and numberwith the slots in said core; a flier for laying the wire in the coreslots; means a for la-yin thewire in the core slots; means for rotatingsaid flier; a swinging arm; a toothed countin wheel; aipawl engagingwith said whee for imparting a step-bystep rotary movement to the same;a pawl engaged with the slots in said guide; means for swinging said armbackward and forward; and separate operating connections between saidarm and each of said pawls.

4. In a winding apparatus, the combination of an armature core support;a flier for laying the wire in the slots in said core; means forrotating the flier; a' toothed counting wheel; a. feeding pawl engagingthe teeth thereof; a ivotally mounted arm carrying said paw a swingingarm provided with a pair of spaced lugs arranged to alternately engagethe first-named arm upon opposite sides for oscillating said pawl; andmeans for operating the secondnamed arm.

5.. In a winding apparatus, the combination of an armature su port, andfeed mechanism for intermittently rotating said support comprising aswinging arm and means for actuating same, a tiltable arm a rotatablemember, a member actuated by the swinging arm for rotating thefirst-named member, means carried by said first-named member forperiodically tilting the tiltable arm, a feeding awl, and connectionsbetween said tilta 1e arm and said feeding pawl for operating the latterfrom the former.

. (3. In a winding apparatus, the combination of an armature support; afeedin pawl associated with said support for osci ating and periodicallyrotating same; a. swinging arm and operating means therefor; andseparate means operatively connected with said arm for imparting lateraland endwise movements to said pawl.

7 In a winding apparatus, the combination of an armature support; afeeding pawl associated therewith; a swinging arm an operating meanstherefor; a tiltable arm; means operated from said swinging. arm forperiodically tilting said tiltable arm; connections between said pawland said swinging arm for oscillatin the former; a member connected withsai swinging arm and arranged to engage saidppawl for moving the pawlendwise, and means on said tiltable arm for actuating said member whenthat arm is tilted.

8. In a winding apparatus, the combination of an armature support; afeeding pawl associated therewith; a swingin arm and operating meanstherefor; a ti ltable arm; means 0 rated from sa1d swinging arm forperiodlcally tilting said tiltable arm; connections between said pawland said swinging arm for oscillating the former; a member carried bysaid swlnging arm and provided with a support; a lever pivoted to thelast-named support; means provided upon the tiltable arm for o cratingsaid lever when that arm is tilte and means actuated by said leverduring its operation for moving said pawl endwise.

9. In a. winding apparatus, the combination of an armature support; afeeding pawl associated therewith; a swingin arm and operating meanstherefor; a tilta ble and reciprocatory arm provided with a shoulder;

connections between the secondand firstnamed arms for operating theformer from the latter; connections etween the firstnamed arm and thepawl for oscillating said pawl; a member carried by said first-named armand provided with a support; a lever pivoted to the last-named supportand adapted for periodic operative engagement by said shoulder; andmeans actuated by said lever during its operation for moving said pawlendwise.

10. In a winding apparatus, the combination of an armature support; aslotted guide secured to said support; a feeding awl arranged to engagethe slots in sai guide; mechanism for continuously oscillating saidpawl; and mechanism associated with the rst-named mechanism forperiodically withdrawing said pawl from engagement in a slot, to permitsaid first-named mechanism to shift the awl into position to engage thesucceeding s 0t.

11 In a winding apparatus, the combination of an armature support; afeedin pawl associated with said support for osci lating same; aswinging arm ,for o crating sai pawl; a reciprocatory' and tilta 1e arm;connections between the first-and-second-named arms for operating thelatter from the former; and a 100 -forming member connected to the secon-named arm.

12. In a winding apparatus, the combination of an armature support; afeeding pawl associated with said support for oscil atin same; aswinging arm for o crating sai pawl; a reciprocatory and tilta le arm;connections between the first-and-second-named arms for continuouslyreciprocating and periodically'tilting the latter arm; and a 100 formingmember connected to the secon named arm for operation during the tiltingmovements thereof.

In testimony whereof I have signed this specification 1n the presence oftwo subscribing witnesses.

FREDERICK N. PIKE.

Witnesses:

Geo. W. JAEKEL, FRANK E. RAFFMAN.

